From: Nikos Mavrogiannopoulos <nmav@gnutls.org>
Date: Sun, 6 Aug 2017 09:34:10 +0000 (+0200)
Subject: _decode_pkcs8_rsa_key: signal error in RSA privkey decoding
X-Git-Tag: gnutls_3_6_0~117
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7bfa8ec3b09d6be960d0cb5ec7f6ca55c8fd88a0;p=thirdparty%2Fgnutls.git

_decode_pkcs8_rsa_key: signal error in RSA privkey decoding

Addresses oss-fuzz issue:
  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2865

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>
---

diff --git a/lib/x509/privkey_pkcs8.c b/lib/x509/privkey_pkcs8.c
index b8d9b80a7f..dea9a5482c 100644
--- a/lib/x509/privkey_pkcs8.c
+++ b/lib/x509/privkey_pkcs8.c
@@ -939,6 +939,7 @@ _decode_pkcs8_rsa_key(ASN1_TYPE pkcs8_asn, gnutls_x509_privkey_t pkey)
 	_gnutls_free_key_datum(&tmp);
 
 	if (pkey->key == NULL) {
+		ret = GNUTLS_E_PK_INVALID_PRIVKEY;
 		gnutls_assert();
 		goto error;
 	}